206 TRUSTS, TRUSTEES, AND TRUST ACCOUNTS agricultural stock and produce, and of manure and other things required for agricultural purposes, and of minerals, and of things required for mining purposes; (xvii) Markets and market-places; (xviii) Streets, roads, paths, squares, gardens, or other open spaces for the use, gratuitously or on payment, of the public or of individuals, or for dedication to the public, the same being necessary or proper in connection with the conversion of land into building land; (xix) Sewers, drains, watercourses, pipe-making, fencing, paving, brick-making, tile-making, and other works necessary or proper in connection with any of the objects aforesaid; (xx) Trial pits for mines, and other preliminary works necessary or proper in connection with development of mines; (xxi) Reconstruction, enlargement, or improvement of any of those works; (xxii) The provision of small dwellings, either by means of building new buildings or by means of the reconstruction, enlargement, or improvement of existing buildings, if that provision of small dwellings is, in the opinion of the Court, not injurious to the settled land or is agreed to by the tenant for life and the trustees of the settlement; (xxiii) Additions to or alterations in buildings reasonably necessary or proper to enable the same to be let; (xxiv) Erection of buildings in substitution for buildings within an urban sanitary district taken by a local or other public authority, or for buildings taken under compulsory powers, but so that no more money be expended than the amount received for the buildings taken and the site thereof; (xxv) The rebuilding of the principal mansion house on the settled land; Provided that the sum to be applied under this head shall not exceed one-half of the annual rental of the settled land. PART II Improvements, the costs of which the trustees of the settle- ment or the Court may require to be replaced by instalments— (i) Residential houses for land or mineral agents, managers, clerks, bailiffs, woodmen, gamekeepers, and other persons employed on the settled land, or in connection with the man- agement or development thereof;